Gene Transfer in Plants – Section 1

6. In a plant tumor cell

A. complete Ti plasmid is incorporated in plant nuclear DNA
B. different parts of the Ti-plasmid are incorporated
C. only a small specific segment of callus T DNA is incorporated
D. may vary from plant to plant

Correct Answer: C. only a small specific segment of callus T DNA is incorporated

7. Co-integrating transformation vectors must include a region of homology in

A. the vector plasmid
B. the Ti-plasmid
C. between vector plasmid and Ti-plasmid
D. none of these

Correct Answer: C. between vector plasmid and Ti-plasmid

8. Crown gall tissue

A. can be cultivated in vitro in the absence of bacteria
B. retains tumorous properties when cultivated
C. both (a) and (b)
D. shows tumorous properties only in the presence of bacteria

Correct Answer: C. both (a) and (b)

9. Integrated nopaline T-DNA occurs as

A. single segment
B. two segments
C. three segments
D. four segments

Correct Answer: A. single segment

10. Opines are

A. amino acid derivatives found in tumor tissues
B. amino acid derivatives found in normal tissues
C. amino acid derivatives found in both normal as well as tumor tissues
D. none of the above

Correct Answer: A. amino acid derivatives found in tumor tissues

Leave A Comment?

7 − 6 =